Abstract
We present a method to optimise a hybrid renewable
energy system design under various grid constraints, from entirely
off-grid to strongly interconnected. The optimisation procedure is
a simplified downward gradient method, and the variable used as
the objective function is the equivalent annual cost of the system
installation and operation.
The results show how a good interconnection provides the
opportunity to use renewable energy technology as an income
stream without a need for energy storage. A balance of energy
storage and local backup generation emerges as the optimum if the
grid is severely constrained or without grid connection. It is
always a balance of storage and backup, as the storage is most costeffective
to balance supply and demand over short time scales of
less than a week while back-up generation is better able to meet
longer periods of insufficient renewable generation. Another key
results is that a combination of renewable technologies, PV and
wind, is always better here than one technology alone.
energy system design under various grid constraints, from entirely
off-grid to strongly interconnected. The optimisation procedure is
a simplified downward gradient method, and the variable used as
the objective function is the equivalent annual cost of the system
installation and operation.
The results show how a good interconnection provides the
opportunity to use renewable energy technology as an income
stream without a need for energy storage. A balance of energy
storage and local backup generation emerges as the optimum if the
grid is severely constrained or without grid connection. It is
always a balance of storage and backup, as the storage is most costeffective
to balance supply and demand over short time scales of
less than a week while back-up generation is better able to meet
longer periods of insufficient renewable generation. Another key
results is that a combination of renewable technologies, PV and
wind, is always better here than one technology alone.
| Original language | English |
|---|---|
| Number of pages | 6 |
| Publication status | Published - Mar 2018 |
| Event | 16th International Conference on Renewable Energies and Power Quality - Salamanca, Spain Duration: 21 Mar 2018 → 23 Mar 2018 Conference number: 16 http://www.icrepq.com/ |
Conference
| Conference | 16th International Conference on Renewable Energies and Power Quality |
|---|---|
| Abbreviated title | ICREPQ'18 |
| Country/Territory | Spain |
| City | Salamanca |
| Period | 21/03/18 → 23/03/18 |
| Internet address |
